New black foam sleeves are tapered, washable, and offer extended durability allowing for longer wear. Gently compress the foam to create a comfortable fit and snug acoustic seal that holds the earphones firmly in place while blocking out ambient noise. Available in three sizes (small, medium, large) and sold in packages of 5 pairs. Included with new SE Model Earphones (SE210, SE310, SE420 and SE530) and also compatible with E3c, E4c, E5c, E500PTH, i3c, and i4c models. NOT compatible with E2c, E2g, i2c, i2c-t or QuietSpot models. UPC Codes: 042406145022 (Small); 042406145039 (Medium); 042406145046 (Large) Keywords: EABKF1-10S, EABKF1-10M, EABKF1-10L